# RPN vs WP 34s

The clearest difference is rating: RPN at 5.0 against WP 34s's 4.7. WP 34s's advantage is update cadence (every 4 months vs every 9 months) and ratings volume (29 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RPN holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: WP 34s has 29 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 83% of RPN's written reviews are positive against 93% of WP 34s's, so the app with the better star average is not the one people write more warmly about.

RPN ships an update every 9 months, WP 34s every 4 months. The most recent releases landed on November 4, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | RPN | WP 34s |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rpn-70-hd/id436127144/reviews)** | [4.7 (29 ratings)](https://appshunter.io/ios/app/wp-34s/id620255094/reviews) |
| Number of ratings | 3 | **29** |
| Positive reviews | 83.3% of reviews | **92.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 14 MB | 11 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [Pascal Meheut](https://appshunter.io/developer/620255097) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn-70-hd/id436127144)

This app provides a photo-realistic simulation of a rare 1974 financial calculator, offering full functionality for loan amortization, saving plans, and depreciation. It features an authentic design with animated keys and an optional live register view.

**Highlights:** Photo-realistic design, Live register view, Animated keys with sound, Full HP-70 function implementation, Cut/copy/paste display value, Built-in manual with examples

**Features:** macOS Compatibility

**In-app purchases:** none


### WP 34s

[App page](https://appshunter.io/ios/app/wp-34s/id620255094)

This app is a powerful RPN scientific calculator with extensive functions for mathematics, statistics, programming, and engineering. It includes programmer functions, fraction mode, probability distributions, and a stopwatch, offering a comprehensive tool for complex calculations.

**Highlights:** RPN scientific calculator implementation, Programmer functions (binary, octal, hexadecimal), Fraction mode and probability distributions, Stopwatch with real-time clock, Mathematical, statistical, and financial functions, Unit conversions and physical constants, Extended character sets for multiple languages

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RPN free?

RPN is free to download, with no in-app purchases.

### Is WP 34s free?

WP 34s is free to download, with no in-app purchases.

### Which has better reviews, RPN or WP 34s?

RPN is rated higher. RPN averages 5.0 out of 5 from 3 ratings, while WP 34s averages 4.7 from 29 ratings.

### Do RPN or WP 34s have ads?

Neither RPN nor WP 34s shows ads.

### Which is updated more often, RPN or WP 34s?

RPN ships an update every 9 months, and WP 34s every 4 months. Most recently, RPN was updated on November 4, 2026 and WP 34s on November 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*